yojimbo_address.h

/*
    Yojimbo Client/Server Network Library.
    
    Copyright © 2016, The Network Protocol Company, Inc.

    Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

        1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

        2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer 
           in the documentation and/or other materials provided with the distribution.

        3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived 
           from this software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
    INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
    USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef YOJIMBO_ADDRESS_H
#define YOJIMBO_ADDRESS_H

#include "yojimbo_config.h"

#include <stdint.h>
#include <assert.h>
#include <math.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>

struct addrinfo;
struct sockaddr_in6;
struct sockaddr_storage;

namespace yojimbo
{
    const int MaxAddressLength = 256;

    enum AddressType
    {
        ADDRESS_NONE,
        ADDRESS_IPV4,
        ADDRESS_IPV6
    };

    class Address
    {
        AddressType m_type;

        union
        {
            uint32_t m_address_ipv4;
            uint16_t m_address_ipv6[8];
        };

        uint16_t m_port;

   public:

        Address();

        Address( uint8_t a, uint8_t b, uint8_t c, uint8_t d, uint16_t port = 0 );

        explicit Address( uint32_t address, int16_t port = 0 );

        explicit Address( uint16_t a, uint16_t b, uint16_t c, uint16_t d,
                          uint16_t e, uint16_t f, uint16_t g, uint16_t h,
                          uint16_t port = 0 );

        explicit Address( const uint16_t address[], uint16_t port = 0 );

        explicit Address( const sockaddr_storage * addr );

        explicit Address( addrinfo * p );

        explicit Address( const char * address );

        explicit Address( const char * address, uint16_t port );

        void Clear();

        uint32_t GetAddress4() const;

        const uint16_t * GetAddress6() const;

        void SetPort( uint16_t port );

        uint16_t GetPort() const;

        AddressType GetType() const;

        const char * ToString( char buffer[], int bufferSize ) const;

        bool IsValid() const;

        bool IsLinkLocal() const;

        bool IsSiteLocal() const;

        bool IsMulticast() const;

        bool IsLoopback() const;

        bool IsGlobalUnicast() const;

        bool operator ==( const Address & other ) const;

        bool operator !=( const Address & other ) const;

    protected:

        void Parse( const char * address );
    };
}

#endif // #ifndef YOJIMBO_ADDRESS_H